Use "See also" boxes where relevant
Rework out-of-date FARSIGHT documentation

The code formerly known as BF-ITK is now integrated directly into ITK,
and as such much of this information has been simplified. The
Bio-Formats ITK page has most of the informational meat; the FARSIGHT
page merely needs to mention that it uses ITK to harness Bio-Formats.
Use better and shorter Fiji wiki URLs

The "/wiki/index.php" is not needed.
Update Image5D link
Update ImgOpener link to current implementation